Historical clue formulations

• Quite a few characters in 2025's "Elio," for short — 2026-07-18
• Many sci-fi villains, informally — 2026-07-03
• Saucer contents, informally — 2026-05-07
• Arrivals in the 2016 thriller "Arrival," in brief — 2026-05-05
• Trisolarans in "The Three-Body Problem," e.g., informally — 2026-04-29
• 125-Across occupants — 2026-03-29
• Saucer crew, in brief — 2026-03-04
• Sci-fi space travelers — 2026-03-03
• They're often depicted with green skin, for short — 2026-01-18
• Subject of astrobiology, in brief — 2026-01-15
• Some unidentified visitors, for short — 2025-10-29
• "Project Hail Mary" creatures, in brief — 2025-10-12
• Visitors from afar, in brief — 2025-08-24
• Coneheads, e.g., for short — 2025-07-28
• "We come in peace" speakers, in brief — 2025-06-29
• U.F.O. crew — 2025-06-16
• U.F.O. crew — 2025-06-10
• Figures in some storied abductions, for short — 2025-06-01
• Xenomorphs in "Alien vs. Predator," e.g. — 2025-04-03
• 9-Down and his family — 2025-02-14
• Abbott and Costello in the film "Arrival," informally — 2025-02-08
• U.F.O. crew — 2025-02-03
• Saucer contents, in brief — 2025-01-17
• Ones who might invade your space, for short? — 2024-12-27
• Some foreigners who have yet to make contact, for short — 2024-10-02
• Org. that administers the G.R.E. — 2024-09-15
• Occupants of 53-Across — 2024-08-01
• Trisolarans in "The Three-Body Problem," e.g., for short — 2024-07-21
• U.F.O. crew — 2024-07-07
• Travelers from far away, for short — 2024-05-10
• The Monstars in "Space Jam," e.g., for short — 2024-05-05
• U.F.O. crew, supposedly — 2024-02-05
• Otherworldly creatures, for short — 2024-02-04
• Flying saucer crew, for short — 2024-01-23
• Otherworldly sorts, for short — 2023-12-03
• They're not from around here, in brief — 2023-07-05
• "Arrival" arrivals, for short — 2023-06-24
• Agent Mulder's obsession, in brief — 2023-06-08
• U.F.O. pilots — 2023-05-29
• Subjects of some conspiracy theories, in brief — 2023-05-27
• U.F.O. pilots — 2023-05-15
• Baddies on TNT's "Falling Skies," for short — 2023-05-13
• Ewoks or Klingons, in brief — 2023-03-13
• U.F.O. pilots, for short — 2023-02-20
• Beings not (yet) proven to exist — 2023-01-11
• Visitors from afar, in brief — 2023-01-01
• "We come in peace" speakers, in brief — 2022-12-22
• H.S. exam org. — 2022-12-07
• They left behind one of their own in a 1982 film — 2022-11-18
• Figures on "The X-Files," in brief — 2022-09-22